Iphone App Design Screen Size. When we create the same image in 2x we accomodate 20px x 20px in the same size of 10pt x 10pt. In ios 14 and later, the launch screen is limited to 25 mb.
Therefore, the tablet design should be performed on the resolution with the width of 768px. But one factor should be taken into account if your application has screens with a large amount of data, then it is worth testing them on smaller screens. You can do this by adding this viewport metatag into the head of your site:
Apple introduced retina displays starting with the iphone 4.
So, it's a good idea to consider using of different assets when dealing with aspect ratios that differ. So when creating any screen for iphone we usually take screen sizes in ratio of 16:9, for which 1136 x 640 is 1x. Android/material design font size guidelines. If you’re designing for the web (using css or javascript) these values will be helpful.